Preliminary Early Report on the 26km SW of Lompoc, CA tsunami
Laboratory of Remote Sensing and Geoinformatics for Disaster Management,
International Research Institute of Disaster Science, Tohoku University

Introduction

On 10/26/2017 20:38:52 a Mw 4.6 magnitude earthquake occurred.

Preliminary Tsunami simulation results

Updated at Fri Oct 27 06:13:03 2017

  • Initial conditions
  • Latitude: 34.47 deg
    Longitude: -120.64 deg
    Focal Depth: 9.06 (km)
    Estimated Magnitude: 4.6
    Parameters for simulation. Estimated from Papazachos(2004)
    Length: 2.16 (km)
    Width: 6.21 (km)
    Slip: 0.01 (m)
    The star shows the location of the epicenter. Click on the image to enlarge.

  • Propagation simulation
  • Tsunami numerical modeling is performed by using linear shalllow water theory on cartesian coordinates with bathymetry/topography grid data of 30 arc-sec from GEBCO.

    Governing Equation : Linear Shallow Water Equations
    Numerical Scheme : Leap-frog Finite Difference Method
    Spatial Grid Size : 30 arc-sec

    Tsunami propagation

  • Maximum inundation heights
  • Click on the image to enlarge

  • Near Sea Level Stations:

    Name

    News related to the event

    CNN
    BBC

    References

  • Mw 4.6 - 26km SW of Lompoc, CA (USGS Earthquake Hazards Program)

  • Contact (Laboratory of Remote Sensing and Geoinformatics for Disaster Management)

  • Erick Mas, Associate Professor (mas@irides.tohoku.ac.jp)
  • Bruno Adriano, JSPS Fellow (adriano@irides.tohoku.ac.jp)
  • Shunichi Koshimura, Professor (koshimura@irides.tohoku.ac.jp)
  • Other useful links

  • International Research Institute of Disaster Science, Tohoku University (IRIDeS)
  • Pacific Tsunami Warning Center (PTWC)